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How to get the first word of a sentence in PHP?
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Using modern PHP syntax you can just do explode(' ',trim($myvalue))[0]
– Elly Post
Apr 1 '16 at 6:28
2
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The opposite of Intersect()
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As stated, if you want to get 4 as the result, you can do like this:
var nonintersect = array2.Except(array1);
If you want the real non-intersection (also both 1 and 4), then this should do the trick:
var nonintersect = array1.Except(array2).Union( array2.Except(array1));
T...
how to return index of a sorted list? [duplicate]
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You can do this with numpy's argsort method if you have numpy available:
>>> import numpy
>>> vals = numpy.array([2,3,1,4,5])
>>> vals
array([2, 3, 1, 4, 5])
>>> sort_index = numpy.argsort(vals)
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push multiple elements to array
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@FlorentArlandis array.concat does not work to add the 2nd array to the first. It will create a new one. I know it is similar. The spread operator is what I was looking for. Just look at the other answers and comments there for details.
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Stopping scripters from slamming your website
... woot.com. I'm the president of Woot Workshop, the subsidiary of Woot that does the design, writes the product descriptions, podcasts, blog posts, and moderates the forums. I work with CSS/HTML and am only barely familiar with other technologies. I work closely with the developers and have talked th...
How do I resolve a HTTP 414 “Request URI too long” error?
... I am giving an option to the user to update multiple issues on one go. In doing so, sometimes the user is encountering this error. Is there any way to increase the lenght of URL in apache?
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Limit number of characters allowed in form input text field
How do I limit or restrict the user to only enter a maximum of five characters in the textbox?
13 Answers
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Iterating C++ vector from the end to the beginning
...one beyond the last element, so you'd have to decrement first, and you are done when you reach begin() — but you still have to do your processing.
vector<my_class>::iterator i = my_vector.end();
while (i != my_vector.begin())
{
--i;
/*do stuff */
}
UPDATE: I was apparently too ...
React JSX: selecting “selected” on selected option
...ry</option>
</select>
For more info, see the React select tag doc.
Also, React automatically understands booleans for this purpose, so you can simply write (note: not recommended)
<option value={option.value} selected={optionsState == option.value}>{option.label}</option>
a...
How do I build a numpy array from a generator?
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Why numpy.array doesn't do the memory allocation the same way as the builtin array.array, as Cuadue says. What is the tradeof? I ask because there is contiguous allocated memory in both examples. Or not?
– jgomo3
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